The id of the currently open tab, or null when the panel is closed or not built.
⚠️ The open state has no dedicated variable: it lives in the DOM, as the gl-is-active
class on the tab button. This reads it back rather than shadowing it, so the value cannot
drift from what the user sees.
The id of the currently open tab, or
nullwhen the panel is closed or not built.⚠️ The open state has no dedicated variable: it lives in the DOM, as the
gl-is-activeclass on the tab button. This reads it back rather than shadowing it, so the value cannot drift from what the user sees.